<VV> Fuel pump pressure

[corvairduval at cox.net]

Hmmm, first you agree with Clark, then you take shortening to the extreme
and the fuel prerssure goes to zero, which sounds more like shortening the
spring will lower  fuel pressure. 

As a practical matter, cutting the spring will result in lower fuel
pressure, as will raising the height of the cover (highly impractical).
Maybe the part that is missing is that one needs to pull the spring to
original length after cutting the coil?

We do agree, a true repair would be to buy a spring with the correct rate,
but who can buy such a spring? Got a part number?

Frank DuVal 

Original Message:
-----------------
From:  kenpepke at juno.com
Date: Mon, 6 May 2013 16:57:41 -0400
To: virtualvairs at corvair.org, chartzel at comcast.net
Subject: Re: <VV> Fuel pump pressure


Right you are, Clark 
 A spring is a spring.  Removing material increases
the pounds / inch rate.  As long as the spring is captured in a manor such
as the frame / moveable lower control arm or pump cap and moveable
diaphragm 
 it will resist its compression by exerting force at its given
rate on both ends.  If one cuts the fuel pressure spring short enough it
will no longer be held in compression and the force exerted will be reduced
to zero as will the fuel pressure.

Ken P

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